Perhaps you should try some spelling variations:
"coder coder sting convex programming" » "coder coder sting cone programming" (Expand search), "coder coder sting computer programming" (Expand search), "coder coder using convex programming" (Expand search), "coder coder steiner convex programming" (Expand search), "coder coder strict convex programming" (Expand search), "coder decoder sting convex programming" (Expand search), "code code sting convex programming" (Expand search), "decoder codec sting convex programming" (Expand search), "coder coders using convex programming" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coder sting convex programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder sting convex programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder sting convex programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder sting convex programming") OR ("api python python python programming"))*.